Add @extends to some classes

src/client/voice/dispatcher/BroadcastDispatcher.js

@@ -3,6 +3,7 @@ const StreamDispatcher = require('./StreamDispatcher');
 /**
  * The class that sends voice packet data to the voice connection.
  * @implements {VolumeInterface}
+ * @extends {StreamDispatcher}
  */
 class BroadcastDispatcher extends StreamDispatcher {
   constructor(player, options, streams) {

src/client/voice/player/AudioPlayer.js

@@ -3,7 +3,7 @@ const BasePlayer = require('./BasePlayer');
 /**
  * An Audio Player for a Voice Connection.
  * @private
- * @extends {EventEmitter}
+ * @extends {BasePlayer}
  */
 class AudioPlayer extends BasePlayer {
   constructor(voiceConnection) {

src/client/voice/player/BroadcastAudioPlayer.js

@@ -4,7 +4,7 @@ const BasePlayer = require('./BasePlayer');
 /**
  * An Audio Player for a Voice Connection.
  * @private
- * @extends {EventEmitter}
+ * @extends {BasePlayer}
  */
 class AudioPlayer extends BasePlayer {
   constructor(broadcast) {